Photoemission study of the oxidation process via hyperthermal O $_{2}$ adsorption at Cu and Cu $_{3}$ Au

Okada, Michio*; Moritani, Kosuke*; Teraoka, Yuden; Yoshigoe, Akitaka ; Kasai, Toshio*

Oxidation processes at Cu surfaces induced by supersonic oxygen molecular beams has been studied by photoemission spectroscopy with synchrotron radiation. Oxidation processes of Cu(001), Cu(110), Cu(111), and Cu(410) has been investigated by now. Following conclusions were obtained. Cu $_{2}$ O structures were formed even at room temperature by an action of translational kinetic energy of oxygen molecules. The formation of Cu $_{2}$ O structure is due to adsorbed-oxygen absorption mechanisms induced by succesive molecular collisions. Furthermore, Cu oxide layer is formed as the first layer and an Au underlayer as the second layer protects further oxidation.

Language	:	English
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Meeting title	:	3rd International Workshop on Oxidation Reactions
Held date	:	2007/05
Location (city)	:	Suita
Location (country)	:	Japan
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DOI for research data	:	Link to research data related to this paper/report.
Keywords	:	no keyword
Research Facility	:	SPring-8(大型放射光施設)
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Cooperating Institute	:	大阪大学

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Registration No. : BB20070456
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Photoemission study of the oxidation process via hyperthermal O adsorption at Cu and CuAu

Photoemission study of the oxidation process via hyperthermal O $_{2}$ adsorption at Cu and Cu $_{3}$ Au